Pandas Profiling Report

Dataset statistics

Number of variables	10
Number of observations	1440
Missing cells	0
Missing cells (%)	0.0%
Duplicate rows	0
Duplicate rows (%)	0.0%
Total size in memory	112.6 KiB
Average record size in memory	80.1 B

Variable types

DateTime	1
Numeric	9

Warnings

`time` has unique values	Unique
`infusion_pressure` has 307 (21.3%) zeros	Zeros

Reproduction

Analysis started	2021-04-25 17:44:44.337689
Analysis finished	2021-04-25 17:44:56.544471
Duration	12.21 seconds
Software version	pandas-profiling v2.11.0
Download configuration	config.yaml

time
Date

UNIQUE

Distinct	1440
Distinct (%)	100.0%
Missing	0
Missing (%)	0.0%
Memory size	11.4 KiB

Minimum	2021-04-23 16:00:36.351072
Maximum	2021-04-24 15:59:36.924559

Histogram

Histogram with fixed size bins (bins=50)

ch1
Real number (ℝ_≥0)

Distinct	77
Distinct (%)	5.3%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	1.113454306
Minimum	1.0257
Maximum	1.1307
Zeros	0
Zeros (%)	0.0%
Memory size	11.4 KiB

Quantile statistics

Minimum	1.0257
5-th percentile	1.1037
Q1	1.1097
median	1.1137
Q3	1.1177
95-th percentile	1.1247
Maximum	1.1307
Range	0.105
Interquartile range (IQR)	0.008

Descriptive statistics

Standard deviation	0.00761866665
Coefficient of variation (CV)	0.006842370281
Kurtosis	22.88085136
Mean	1.113454306
Median Absolute Deviation (MAD)	0.004
Skewness	-2.473525276
Sum	1603.3742
Variance	5.804408152 × 10⁵
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1.1137	85	5.9%
1.1157	83	5.8%
1.1107	77	5.3%
1.1097	75	5.2%
1.1127	75	5.2%
1.1117	71	4.9%
1.1167	70	4.9%
1.1147	67	4.7%
1.1087	66	4.6%
1.1177	65	4.5%
Other values (67)	706	49.0%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
1.0257	1	0.1%
1.0317	1	0.1%
1.0687	1	0.1%
1.0727	1	0.1%
1.0767	1	0.1%

Value	Count	Frequency (%)
1.1307	1	0.1%
1.1297	3	0.2%
1.1295	2	0.1%
1.1287	1	0.1%
1.1277	7	0.5%

ch2
Real number (ℝ_≥0)

Distinct	106
Distinct (%)	7.4%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	0.7165904167
Minimum	0.5897
Maximum	0.7357
Zeros	0
Zeros (%)	0.0%
Memory size	11.4 KiB

Quantile statistics

Minimum	0.5897
5-th percentile	0.7037
Q1	0.7127
median	0.7187
Q3	0.7247
95-th percentile	0.7297
Maximum	0.7357
Range	0.146
Interquartile range (IQR)	0.012

Descriptive statistics

Standard deviation	0.01481324717
Coefficient of variation (CV)	0.0206718466
Kurtosis	26.00016755
Mean	0.7165904167
Median Absolute Deviation (MAD)	0.006
Skewness	-4.364070019
Sum	1031.8902
Variance	0.0002194322917
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0.7247	78	5.4%
0.7257	75	5.2%
0.7237	65	4.5%
0.7197	65	4.5%
0.7157	62	4.3%
0.7227	60	4.2%
0.7177	58	4.0%
0.7217	57	4.0%
0.7207	57	4.0%
0.7187	55	3.8%
Other values (96)	808	56.1%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
0.5897	1	0.1%
0.5967	1	0.1%
0.5997	1	0.1%
0.6037	1	0.1%
0.6047	1	0.1%

Value	Count	Frequency (%)
0.7357	2	0.1%
0.7347	3	0.2%
0.7337	2	0.1%
0.7335	1	0.1%
0.7327	9	0.6%

ch3
Real number (ℝ_≥0)

Distinct	67
Distinct (%)	4.7%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	1.14666125
Minimum	1.1267
Maximum	1.1647
Zeros	0
Zeros (%)	0.0%
Memory size	11.4 KiB

Quantile statistics

Minimum	1.1267
5-th percentile	1.1367
Q1	1.1417
median	1.1467
Q3	1.1515
95-th percentile	1.1577
Maximum	1.1647
Range	0.038
Interquartile range (IQR)	0.0098

Descriptive statistics

Standard deviation	0.006417434002
Coefficient of variation (CV)	0.005596625858
Kurtosis	-0.4205498814
Mean	1.14666125
Median Absolute Deviation (MAD)	0.0049
Skewness	0.02141966533
Sum	1651.1922
Variance	4.118345917 × 10⁵
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1.1467	81	5.6%
1.1477	78	5.4%
1.1507	78	5.4%
1.1447	75	5.2%
1.1517	74	5.1%
1.1457	74	5.1%
1.1427	72	5.0%
1.1487	65	4.5%
1.1437	64	4.4%
1.1497	61	4.2%
Other values (57)	718	49.9%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
1.1267	1	0.1%
1.1277	1	0.1%
1.1297	1	0.1%
1.1307	2	0.1%
1.1317	7	0.5%

Value	Count	Frequency (%)
1.1647	1	0.1%
1.1627	3	0.2%
1.1625	1	0.1%
1.1617	1	0.1%
1.1615	1	0.1%

ch4
Real number (ℝ_≥0)

Distinct	68
Distinct (%)	4.7%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	1.221520278
Minimum	1.2047
Maximum	1.2427
Zeros	0
Zeros (%)	0.0%
Memory size	11.4 KiB

Quantile statistics

Minimum	1.2047
5-th percentile	1.2117
Q1	1.2157
median	1.2205
Q3	1.2277
95-th percentile	1.2345
Maximum	1.2427
Range	0.038
Interquartile range (IQR)	0.012

Descriptive statistics

Standard deviation	0.00728035081
Coefficient of variation (CV)	0.005960073641
Kurtosis	-0.7673517706
Mean	1.221520278
Median Absolute Deviation (MAD)	0.0058
Skewness	0.3333817274
Sum	1758.9892
Variance	5.300350791 × 10⁵
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1.2157	87	6.0%
1.2147	75	5.2%
1.2167	74	5.1%
1.2177	65	4.5%
1.2197	64	4.4%
1.2127	63	4.4%
1.2187	62	4.3%
1.2137	61	4.2%
1.2247	56	3.9%
1.2287	55	3.8%
Other values (58)	778	54.0%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
1.2047	1	0.1%
1.2067	5	0.3%
1.2077	3	0.2%
1.2085	2	0.1%
1.2087	8	0.6%

Value	Count	Frequency (%)
1.2427	1	0.1%
1.2417	1	0.1%
1.2407	2	0.1%
1.2397	3	0.2%
1.2387	4	0.3%

ch5
Real number (ℝ_≥0)

Distinct	118
Distinct (%)	8.2%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	1.066545278
Minimum	1.0267
Maximum	1.0937
Zeros	0
Zeros (%)	0.0%
Memory size	11.4 KiB

Quantile statistics

Minimum	1.0267
5-th percentile	1.0347
Q1	1.0557
median	1.0717
Q3	1.0797
95-th percentile	1.0857
Maximum	1.0937
Range	0.067
Interquartile range (IQR)	0.024

Descriptive statistics

Standard deviation	0.0166731171
Coefficient of variation (CV)	0.01563282633
Kurtosis	-0.6576875192
Mean	1.066545278
Median Absolute Deviation (MAD)	0.01
Skewness	-0.7275434463
Sum	1535.8252
Variance	0.0002779928338
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1.0797	60	4.2%
1.0767	54	3.8%
1.0817	52	3.6%
1.0757	50	3.5%
1.0747	48	3.3%
1.0787	44	3.1%
1.0837	40	2.8%
1.0777	40	2.8%
1.0827	38	2.6%
1.0847	36	2.5%
Other values (108)	978	67.9%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
1.0267	3	0.2%
1.0277	4	0.3%
1.0287	2	0.1%
1.0297	7	0.5%
1.0307	5	0.3%

Value	Count	Frequency (%)
1.0937	2	0.1%
1.0927	1	0.1%
1.0917	2	0.1%
1.0907	6	0.4%
1.0897	9	0.6%

ch6
Real number (ℝ_≥0)

Distinct	68
Distinct (%)	4.7%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	1.212456389
Minimum	1.1967
Maximum	1.2345
Zeros	0
Zeros (%)	0.0%
Memory size	11.4 KiB

Quantile statistics

Minimum	1.1967
5-th percentile	1.2017
Q1	1.2057
median	1.2107
Q3	1.2187
95-th percentile	1.2257
Maximum	1.2345
Range	0.0378
Interquartile range (IQR)	0.013

Descriptive statistics

Standard deviation	0.007826910565
Coefficient of variation (CV)	0.006455416159
Kurtosis	-0.9579024664
Mean	1.212456389
Median Absolute Deviation (MAD)	0.006
Skewness	0.3186357128
Sum	1745.9372
Variance	6.126052899 × 10⁵
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1.2077	83	5.8%
1.2047	80	5.6%
1.2057	79	5.5%
1.2067	70	4.9%
1.2097	60	4.2%
1.2087	54	3.8%
1.2207	50	3.5%
1.2037	49	3.4%
1.2237	48	3.3%
1.2197	47	3.3%
Other values (58)	820	56.9%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
1.1967	2	0.1%
1.1977	4	0.3%
1.1987	8	0.6%
1.1995	2	0.1%
1.1997	11	0.8%

Value	Count	Frequency (%)
1.2345	1	0.1%
1.2317	1	0.1%
1.2315	1	0.1%
1.2307	3	0.2%
1.2305	3	0.2%

infusion_pressure
Real number (ℝ_≥0)

ZEROS

Distinct	175
Distinct (%)	12.2%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	4.700560391
Minimum	0
Maximum	6.49879837
Zeros	307
Zeros (%)	21.3%
Memory size	11.4 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	1.81254518
median	6.396168709
Q3	6.424210548
95-th percentile	6.457351685
Maximum	6.49879837
Range	6.49879837
Interquartile range (IQR)	4.611665368

Descriptive statistics

Standard deviation	2.754220168
Coefficient of variation (CV)	0.5859344287
Kurtosis	-0.8518217859
Mean	4.700560391
Median Absolute Deviation (MAD)	0.03314065933
Skewness	-1.042766012
Sum	6768.806964
Variance	7.585728731
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	307	21.3%
6.383421898	42	2.9%
6.419112682	42	2.9%
6.414013863	40	2.8%
6.391069889	38	2.6%
6.401267052	37	2.6%
6.378323555	36	2.5%
6.421661377	35	2.4%
6.380872726	35	2.4%
6.385971546	34	2.4%
Other values (165)	794	55.1%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
0	307	21.3%
0.01784503087	1	0.1%
0.02547871321	2	0.1%
0.02549289912	8	0.6%
0.02550708689	1	0.1%

Value	Count	Frequency (%)
6.49879837	3	0.2%
6.495591164	1	0.1%
6.493041515	2	0.1%
6.487942696	2	0.1%
6.485393524	2	0.1%

infusion_temp
Real number (ℝ_≥0)

Distinct	10
Distinct (%)	0.7%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	26.06208333
Minimum	25.6
Maximum	26.5
Zeros	0
Zeros (%)	0.0%
Memory size	11.4 KiB

Quantile statistics

Minimum	25.6
5-th percentile	25.8
Q1	25.9
median	26.1
Q3	26.2
95-th percentile	26.3
Maximum	26.5
Range	0.9
Interquartile range (IQR)	0.3

Descriptive statistics

Standard deviation	0.1721582534
Coefficient of variation (CV)	0.006605698063
Kurtosis	-0.5731020597
Mean	26.06208333
Median Absolute Deviation (MAD)	0.1
Skewness	-0.3120564206
Sum	37529.4
Variance	0.02963846421
Monotocity	Not monotonic

Histogram with fixed size bins (bins=10)

Value	Count	Frequency (%)
26.2	373	25.9%
26.1	294	20.4%
25.9	274	19.0%
26	170	11.8%
26.3	126	8.8%
25.8	112	7.8%
25.7	41	2.8%
26.4	36	2.5%
25.6	13	0.9%
26.5	1	0.1%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
25.6	13	0.9%
25.7	41	2.8%
25.8	112	7.8%
25.9	274	19.0%
26	170	11.8%

Value	Count	Frequency (%)
26.5	1	0.1%
26.4	36	2.5%
26.3	126	8.8%
26.2	373	25.9%
26.1	294	20.4%

infusion_vacuum
Real number (ℝ_≥0)

Distinct	295
Distinct (%)	20.5%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	567.5036811
Minimum	0.6564416289
Maximum	719.9078369
Zeros	0
Zeros (%)	0.0%
Memory size	11.4 KiB

Quantile statistics

Minimum	0.6564416289
5-th percentile	0.9053501517
Q1	712.3053589
median	714.7166138
Q3	715.9078369
95-th percentile	719.510498
Maximum	719.9078369
Range	719.2513953
Interquartile range (IQR)	3.602478027

Descriptive statistics

Standard deviation	287.3416676
Coefficient of variation (CV)	0.5063256454
Kurtosis	0.09788122464
Mean	567.5036811
Median Absolute Deviation (MAD)	1.191223145
Skewness	-1.442782579
Sum	817205.3007
Variance	82565.23393
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
714.3200073	170	11.8%
714.7166138	167	11.6%
715.9078369	115	8.0%
715.1134644	103	7.2%
715.510498	92	6.4%
713.9248047	87	6.0%
716.703064	70	4.9%
712.3053589	69	4.8%
719.9078369	68	4.7%
716.3053589	63	4.4%
Other values (285)	436	30.3%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
0.6564416289	1	0.1%
0.6585187316	1	0.1%
0.6607145071	1	0.1%
0.6632851362	1	0.1%
0.6654968262	1	0.1%

Value	Count	Frequency (%)
719.9078369	68	4.7%
719.510498	27	1.9%
719.1134644	8	0.6%
718.7166138	4	0.3%
717.8963623	1	0.1%

Pearson's r

The Pearson's correlation coefficient (r) is a measure of linear correlation between two variables. It's value lies between -1 and +1, -1 indicating total negative linear correlation, 0 indicating no linear correlation and 1 indicating total positive linear correlation. Furthermore, r is invariant under separate changes in location and scale of the two variables, implying that for a linear function the angle to the x-axis does not affect r.

To calculate r for two variables X and Y, one divides the covariance of X and Y by the product of their standard deviations.

Spearman's ρ

The Spearman's rank correlation coefficient (ρ) is a measure of monotonic correlation between two variables, and is therefore better in catching nonlinear monotonic correlations than Pearson's r. It's value lies between -1 and +1, -1 indicating total negative monotonic correlation, 0 indicating no monotonic correlation and 1 indicating total positive monotonic correlation.

To calculate ρ for two variables X and Y, one divides the covariance of the rank variables of X and Y by the product of their standard deviations.

Kendall's τ

Similarly to Spearman's rank correlation coefficient, the Kendall rank correlation coefficient (τ) measures ordinal association between two variables. It's value lies between -1 and +1, -1 indicating total negative correlation, 0 indicating no correlation and 1 indicating total positive correlation.

To calculate τ for two variables X and Y, one determines the number of concordant and discordant pairs of observations. τ is given by the number of concordant pairs minus the discordant pairs divided by the total number of pairs.

Phik (φk)

Phik (φk) is a new and practical correlation coefficient that works consistently between categorical, ordinal and interval variables, captures non-linear dependency and reverts to the Pearson correlation coefficient in case of a bivariate normal input distribution. There is extensive documentation available here.

Count
Matrix

A simple visualization of nullity by column.

Nullity matrix is a data-dense display which lets you quickly visually pick out patterns in data completion.

First rows

	time	ch1	ch2	ch3	ch4	ch5	ch6	infusion_pressure	infusion_temp	infusion_vacuum
0	2021-04-23 16:00:36.351072800	1.1077	0.7187	1.1437	1.2107	1.0777	1.2007	6.411464	26.0	713.924805
1	2021-04-23 16:01:36.341160900	1.1057	0.7137	1.1417	1.2187	1.0757	1.2007	6.411464	26.0	714.716614
2	2021-04-23 16:02:36.363946100	1.1105	0.7127	1.1347	1.2117	1.0747	1.2077	6.414014	26.0	714.320007
3	2021-04-23 16:03:36.351226900	1.1097	0.7155	1.1387	1.2127	1.0747	1.2027	6.408915	26.0	714.320007
4	2021-04-23 16:04:36.357367000	1.1057	0.7177	1.1375	1.2157	1.0697	1.2067	6.408915	26.0	713.924805
5	2021-04-23 16:05:36.346784500	1.1097	0.7207	1.1437	1.2157	1.0787	1.2107	6.411464	26.0	713.924805
6	2021-04-23 16:06:36.351320900	1.1097	0.7227	1.1437	1.2117	1.0777	1.1997	6.411464	26.0	714.320007
7	2021-04-23 16:07:36.360877700	1.1037	0.7157	1.1447	1.2175	1.0697	1.2077	6.406366	26.0	714.716614
8	2021-04-23 16:08:36.347842400	1.1117	0.7157	1.1457	1.2077	1.0765	1.2057	6.411464	26.0	713.924805
9	2021-04-23 16:09:36.355175700	1.1047	0.7237	1.1367	1.2097	1.0807	1.2035	6.408915	26.0	714.320007

Last rows

	time	ch1	ch2	ch3	ch4	ch5	ch6	infusion_pressure	infusion_temp	infusion_vacuum
1430	2021-04-24 15:50:36.943382200	1.1087	0.7107	1.1427	1.2147	1.0617	1.2087	6.411464	26.1	715.907837
1431	2021-04-24 15:51:36.945533200	1.1107	0.7137	1.1337	1.2137	1.0607	1.2057	6.414014	26.1	715.510498
1432	2021-04-24 15:52:36.952752000	1.1045	0.7097	1.1357	1.2187	1.0617	1.2057	6.414014	26.1	719.907837
1433	2021-04-24 15:53:36.957488300	1.1047	0.7115	1.1437	1.2157	1.0557	1.2027	6.411464	26.1	715.907837
1434	2021-04-24 15:54:36.948593200	1.1067	0.7087	1.1385	1.2127	1.0557	1.2067	6.411464	26.1	715.510498
1435	2021-04-24 15:55:36.936589500	1.0897	0.7067	1.1377	1.2127	1.0627	1.1997	6.414014	26.1	715.907837
1436	2021-04-24 15:56:36.939591100	1.1017	0.7077	1.1347	1.2177	1.0527	1.2027	6.408915	26.1	719.907837
1437	2021-04-24 15:57:36.929890500	1.1057	0.7147	1.1347	1.2085	1.0587	1.2097	6.414014	26.1	719.510498
1438	2021-04-24 15:58:36.937453900	1.1037	0.7127	1.1407	1.2147	1.0565	1.2007	6.411464	26.1	715.113464
1439	2021-04-24 15:59:36.924559800	1.1087	0.7127	1.1317	1.2187	1.0577	1.2045	6.414014	26.1	715.907837

Overview

Variables

Interactions

Correlations

Pearson's r

Spearman's ρ

Kendall's τ

Phik (φk)

Missing values

Sample

First rows

Last rows